Perimeter of Common Shapes

Front

What is the perimeter of a rectangle?

Back

The perimeter of a rectangle is the total distance around it, calculated as P = 2(length + width).

Front

What is the formula for finding the perimeter of a square?

Back

The perimeter of a square is calculated as P = 4 × side length.

Front

If a rectangle has a length of 10 cm and a width of 5 cm, what is its perimeter?

Back

P = 2(10 cm + 5 cm) = 30 cm.

Front

What is the perimeter of an equilateral triangle with each side measuring 6 yd?

Back

P = 3 × side length = 3 × 6 yd = 18 yd.

Front

How do you find the perimeter of a shape with unequal sides?

Back

Add the lengths of all sides together.

Front

What is the perimeter of a fence that is 10 m long on each side?

Back

P = 4 × 10 m = 40 m.

Front

What is the perimeter of a rectangle with a length of 12 cm and a width of 8 cm?

Back

P = 2(12 cm + 8 cm) = 40 cm.

Front

If a square has a perimeter of 32 cm, what is the length of one side?

Back

Side length = Perimeter ÷ 4 = 32 cm ÷ 4 = 8 cm.

Front

What is the perimeter of a triangle with sides measuring 3 cm, 4 cm, and 5 cm?

Back

P = 3 cm + 4 cm + 5 cm = 12 cm.

Front

What is the perimeter of a rectangle with a length of 15 in and a width of 10 in?

Back

P = 2(15 in + 10 in) = 50 in.